Drug & supplement interaction

White Oak + Pimavanserin Tartrate

Pimavanserin Tartrate brand name: Nuplazid.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between White Oak and Pimavanserin Tartrate in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

White Oak and Pimavanserin Tartrate

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Pimavanserin Tartrate and White Oak in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for White Oak at all — not against Pimavanserin Tartrate, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

White Oak safety at a glance

White Oak overall Use caution Generally used short-term, but its high tannin content can irritate the digestive tract and is not well studied.
Pregnancy Avoid Not enough safety data, so it is best avoided during pregnancy.
Breastfeeding Avoid Safety while breastfeeding is unknown, so avoid use.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Pimavanserin Tartrate and White Oak? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Pimavanserin Tartrate’s Own FDA Label Lists

This is not an interaction — none of it involves White Oak. These are the most notable effects listed in the ADVERSE REACTIONS section of Pimavanserin Tartrate’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 3 of them are worth acting on rather than waiting out — marked below.

  • Hallucinations Worth acting on mentioned in 27.3% of FDA reports for Pimavanserin Tartrate
  • Confusion Worth acting on mentioned in 7.9% of FDA reports for Pimavanserin Tartrate
  • Unsteadiness Worth acting on
  • Constipation
  • Swelling
  • Nausea

From the ADVERSE REACTIONS section of the FDA label for Pimavanserin Tartrate. Read the label on DailyMed › Where a percentage is shown, it is the share of 52,308 voluntary FDA FAERS reports for Pimavanserin Tartrate that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. White Oak’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no White Oak side to compare — that is a limit of the record, not a statement that White Oak has no side effects.

Everything else you take

See Every Supplement That Interacts With Pimavanserin Tartrate

This page covers White Oak only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Pimavanserin Tartrate page lists 153 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), Arsenic (major), Cesium (major) and Ephedra (major).

By severity: 10 major · 103 moderate · 40 minor.

From our pharmacist’s overview on the Pimavanserin Tartrate page

“Pimavanserin (Nuplazid) eases the hallucinations and delusions of Parkinson's disease psychosis, and its supplement list deserves genuine care, since 10 of the 153 ingredients on file carry a major rating. The dominant pattern runs through CYP3A4, the liver enzyme that clears pimavanserin: grapefruit can push its blood level up, while St.”

Reviewed by 2 · Jul 18, 2026

Open the Pimavanserin Tartrate interaction page

One more smart check

Taking White Oak as Part of a Dietary Supplement Product? Check It for Interactions

We hold 132 real supplement products containing White Oak, each one broken down to its full ingredient list — and combination products often carry several ingredients besides White Oak. Even though White Oak itself has no known interaction with Pimavanserin Tartrate, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where White Oak and Pimavanserin Tartrate Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement White Oak
Steady interest

#844 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Pimavanserin Tartrate
Top 25%

#515 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions. White Oak is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every White Oak reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The White Oak and Pimavanserin Tartrate records this page draws on were last updated June 22, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About White Oak

What is White Oak?

  • Diarrhea
  • Sore throat and mouth irritation
  • Minor skin inflammation and wounds
  • Hemorrhoids
  • Excessive sweating (topical)

White oak bark is a traditional herbal remedy rich in tannins, used mostly as a tea or skin wash for diarrhea, sore throat, and minor skin problems. Solid human evidence is very limited, and the high tannin content can irritate the stomach, so it should be used cautiously and not for long periods. Talk to a pharmacist or doctor before using it, especially during pregnancy or breastfeeding.

Quercus alba · Fagaceae · Bark (mainly inner bark) · Dried bark, tea/decoction, liquid extract, tincture, powder, capsules, topical washes

An interaction check asks whether these two react with each other — it does not ask whether White Oak is a good idea for someone in your situation. Here is what our White Oak record says about it on its own.

White Oak: dosing

There is no well-established, standardized dose for white oak bark, and the amount of active tannins can vary a lot between products.Traditional preparations include teas (decoctions) of the bark taken by mouth, and stronger washes or compresses used on the skin or as a gargle.

From our White Oak monograph — the full record covers uses, side effects and every documented interaction.

Read the full White Oak monograph & all interactions
Medication

About Pimavanserin

What Is Pimavanserin Used For?

Brand name: Nuplazid

Pimavanserin — sold as Nuplazid and also available as a generic capsule — is approved to treat hallucinations and delusions in adults with Parkinson's disease psychosis. These are the unsettling false perceptions and beliefs that can occur as part of Parkinson's disease.

It is not approved for psychosis caused by other forms of dementia. Using it in elderly patients with non-Parkinson's dementia-related psychosis carries serious safety risks.

Most-Reported Side Effects for Pimavanserin Tartrate

From FAERS, the FDA’s public side-effect reporting system (54,981 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Hallucination 12,702 reports
Confusional state 4,287 reports
Fall 4,005 reports
Delusion 2,770 reports
Hallucination, visual 2,322 reports
See full Pimavanserin drug information
Keep checking

Other Drugs & White Oak

Browse every other medication we’ve checked against White Oak — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked White Oak against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full White Oak list.

See the full White Oak interactions page
See every supplement checked against Pimavanserin Tartrate, ranked by severity
Evidence & sources

White Oak References

The 2 sources that drive our White Oak monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. White Oak is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Herbs at a Glance — NIH NCCIH Source
  2. Herbs and Supplements — MedlinePlus Source

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking White Oak and Pimavanserin Tartrate Together: Common Questions

Is it safe to take White Oak with Pimavanserin Tartrate?
We do not list a known interaction between White Oak and Pimavanserin Tartrate. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Does Pimavanserin Tartrate interact with any supplements?
Yes. Pimavanserin Tartrate has documented interactions with 153 supplements in our database — White Oak is not one of them. The Pimavanserin Tartrate interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

White Oak monograph Uses, safety profile, and every drug interaction in one place Pimavanserin drug information The full plain-English guide to this medication Pimavanserin Tartrate supplement interactions Every supplement checked against Pimavanserin Tartrate, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Pimavanserin Tartrate and White Oak?

Our pharmacists answer your medication & supplement questions — free.

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.